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      Question

      If x =

      1]> `sqrt((sqrt5+1)/(sqrt5-1))` , then the value of 5x 2 - 5x - 1 is
      B 3 Correct Answer Incorrect Answer
      C 4 Correct Answer Incorrect Answer
      D 5 Correct Answer Incorrect Answer

      Solution

      [if gte vml 1]> [if !vml]-->`x = sqrt((sqrt5+1)/(sqrt5-1)xx((sqrt5+1)/(sqrt5+1)))` [endif]--> put x = `(sqrt5+1)/2` in eque. 5x 2 - 5x-1 we get, 4

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